Robot arm



FIG. 1 shows a front perspective view of the robot arm in accordance with the invention;

FIG. 2 shows a back perspective view of the robot arm in accordance with the invention;

FIG. 3 shows a back side view of the robot arm in accordance with the invention;

FIG. 4 shows a front side view of the robot arm in accordance with the invention;

FIG. 5 shows a back end view of the robot arm in accordance with the invention;

FIG. 6 shows a front end view of the robot arm in accordance with the invention; and,

FIG. 7 shows a top view of the robot arm in accordance with the invention. 

The ornamental design for a robot arm, as shown. 